John btene



(No Model.)

J. BYRNE.

WRENCH.

Patented Mar. v13, `1888.

No. 379,504i

N. PETERS. Photo-Lnhugnphw. wnhinginn, D4 C.

linnen STATES FFlCE@ PATENT JOHN BYRNE, OF SHARON, VISCONSIN, ASSIGNOR TO HIMSELF AND CHARLES R. TREAT, OF SAME PLACE.

WRENCH.

SPECIFICATION forming part of Letters Patent No, 329,504, dated March 13, 1888.

Application filed October 28, 1887. Serial No. 253,611. (No model.)

To all whom, it may concern.-

Be it known that l, JOHN BYRNE, a citizen ofthe United States, residing in Sharon, in the countyof Walworth and State of Wisconsin, have invented anew and useful Improvement in a Combined Wrench and Clamp for Tire-Bolts, of which the following is a specilication.

The object of my invention is to provide an improved tool or device for applying and removing tirebolts to or fromV the wheels of ve hicles, which'shall be of a simple and cheap construction and operate efficiently both to clamp the bolt to hold it from turning and to revolve the nut for the purpose of threading it or unthreading it, and which shall also be readily adjustable to bolts of different lengths and sizes, so that the same tool may be used whatever the thickness or'depth of the felly and tire of the wheel.

To this end my invention consists in a pair of pivotal clamping-jaws having handles or levers for clamping and holding the bolt, and a revolving wrench journaled upon one of the jaws or arms ofthe clamp, whereby the nut may be screwed on or unscrewed at the same time the bolt is held from revolving.

lt also consists, in combination with the clamp and wrench, of a crank and crank-shaft journaled on one of the clamp arms or levers, and having a gear which meshes with a gear on the revolving wrench, whereby the wrench is conveniently operated.

It further consists in the novel devices and novel combinations of devices herein shown and described, and more particularly pointed out in the claims.

In the accompanying drawings, which forni apart of this specification, and in which similarletters of reference indicate like parts, Figure l is a side elevation of a device embodying my invention. Fig. 2 is a similar View from the opposite side. Fig. 3 is a partial vertical section on line 8 3 of Fig. 2. Fig` 4 is a central longitudinal section ofthe wrench. Figs. 5 and 6 are detail front and side views of the holding point or claw of the upper clamp-arm, which engages the smooth head of the bolt, that is flush with the surface of the tire; and Fig. 7 is a perspective View showing the devices for varying the size of the wrenchsocket which ts upon the nut.

In said drawings, A and B are a pair of clamp arms or levers pivoted together by a bolt, a. The clamp-arm A has a double holding point or claw, a4, which engages the smooth head of the tire-bolt c. The clamparm B has an offset or -right-angle middle portion, B, so

that the end of the clamping-jaw B will lit' properly under the felly of the wheel.

D is a revolving wrench journaledin a suitable hole or bearing, b, near the end of the clamp-arm B. The shaft d of the wrench is furnished with a gear, d, and also a nut, d2, for securing the gear and wrench in place on the clamp-arm B. The wrench is revolved or operated by a crank, F, on the crankshaft f, which is furnished at its lower end with a gear, f, that meshes with the gear d on the shaft ofthe wrench D. The crank-shaft f is journaled in suitable holes or bearings, b bien the clamp-arm B, the latter being in a projection, b3, near the upper right angle bend of the clamp-arm B. v

The pivot or bolt a, by which the clamp arms or levers A and B are pivoted together, tits in a suitable hole in the clamp-arm A and in a vertical slot, bt, in the oi'set portion B of the clamp-arm B, so that the position of the pivot may be adjusted as required to enable the combined clamp and wrench to operate upon wheels whose tires and fellies are of different thicknesses. The bolt a is furnished with a bearingblock, c', that fits in said slot b4. A setscrew, a2, ts against the head a of the bolt a and serves to tix and adjust it in any desired position.

The socket cl3 of the wrench is made deep enough to permit the-nut c of the tire-bolt to freely recede from the felly as it is unthreaded, while at the same time the end of the round cup-shaped Wrench D bears against the under side of the felly. The wrench D, or its end which bears against the felly, should be round, so tha-tit may easily revolve thereon when the clamp-arms are pressed together with sufficient force to cause the holding point or claw a* to properly hold the bolt from turning.

To adapt the socket or recess d3 of the lwrench to tit nuts of different sizes,lprovide the same with a number of Ushaped iillers, d, one or more of which may be used, as required.

It will be observed that in my invention the IOO clamp not only holds the bolt from turning, but also holds the wrench from falling off or becoming displaced from the nut, which is a matter vof great convenience and materially facilitates the operation of the device.

C represents the tire, and C the felly,of any ordinary vehicle-wheel.

In operation the clamp arms or'jaws A B, being rst opened, are then closed with the clamppoint a fitting against the round head of the tire-bolt, which is liush with the surface of the tire, and with the wrench D tting upon the nut of the tire-bolt on the under side of the felly. The operator then, with one hand clasping the handles of the clamp-arms A B and exerting sufficient pressure thereon to hold the bolt from turning, revolves the wrench D by turning the crank F with his other hand, thereby threading or unthreading the nut from the bolt. The pivotal clamp arms or jaws A B adapt the device to fit upon various wheels without moving the adjustable pivot a. The pivot may, however, be adjusted when necessary.

I claiml. The combination of a pair of clamp arms or levers with a revolving wrench journaled on one of said clamp-arn1s, substantially as specied.

2. The combination of a pair of clamp arms or levers with a revolving wrench journaled on one of said clamp-arms,a crank and a crankshaft, also journaledon one of said clamp arms or levers, said crank-shaft having a gear, and the shaft of said wrench being provided with a gear meshing with the gear on said crankshaft, substantially as specified.

3. The combination, with clamp arm A, having holding point or claw a4, of clamp-arm B, pivoted thereto and provided with oset or vertical portion B, wrench D, journaled on said clamp-arm B and provided with gear d', crank F, and crank-shaft f, provided with gear f', substantially as specified.

4. The combination of a pair of clamp arms or levers provided with an adjustable pivot, and one of said clamp-arms having an offset or middle portion, as B', with a revolving wrench journaled on one of said clamparms, substantially as specified.

Signed at Sharon, Wisconsin, this 25th day of October, 1887. f

JOHN BYRNE.

Witnesses:

GEORGE C. MANsFIELD, HARRY T. FOWLER. 

